Assignment 1: Polytonic Greek OCR
Posted: May 17th, 2014, 2:45 pm
For our experiment in crowd-sourcing the generation of ground-truth for OCR improvement, here's an example I'll hand off to whoever would like to try it on.
The page image is:
Text is the following between '############'s
The ground rules:
1. Never change the lines, either by inserting a line break or removing one. We are not training this aspect, and if wonky decisions are made by the software that does that aspect, it will not impact further OCR recognition. However, if you do play with this aspect, it will offset the training data and make a mess.
2. Correct EVERYTHING, and correct everything correctly. If you leave something incorrect, you are making things worse, basically reinforcing bad habits. Distinguish between superscript numbers and normal ones, for instance. Correct sigla.
3. Use composed unicode output (this is the most common default).
4. If a line should not be used in training, like line 4 below, replace its characters with 'xxxxx' Note that you should use this when the corresponding image does not contain real text. In that case, it was the underline that got recognized as letters. The same is true for the last line of the OCR output, which is noise on the page. We neither want to correct the output in this case or suggest that the output is 'blank', we just want to say this is not part of how we'll train you, Mister Computer.
5. In rare cases, due to a printer's error or ink-blot, the printed character does actually look like what it was recognized as, even though this is not what was originally on the printer's plates. In these cases, we should go with the (erroneous) recognized character, because it was a legit reading. (Even if you or I could tell that it is in fact alpha-smudge, not delta.)
6. Many of the remaining errors are combining vowels and accents, so be sure to check these carefully. Sometimes it helps to set the font size unusually large.
#############
1 10 A sHoRT GRAMMAR oF TIE GREEE NEW TEsTAMENT.
tive absolute, this construction is common in Homer. A number
of adverbs in the instrumental case illustrate this usage as πανοικεί
wweενw
(3 16:34), τάχα (Rom. 5:7), πανπληθεί (Luke 23:18), πάντῃ
ι(Aeiἴ7δ, κρυφῇ (Eph. 5:12), ιδᾳ (1 Cor. 12:11), δηροσ (λcts
16:37), ἅμα (Acts 24:26), and the preposition μετά and the con-
junction ἴνα.
(e) The instrumental case is also used to express the idea of
cause or ground. This conception likewise wavers between asso-
ciation and means. Thus we have τοιαύταις γὰρ θυσίαις εὐαρεστεῖται
(Heb. 13:16), τῇ ἀπιστᾳ ἐξεκλάσθησαν (Rom. 11:20), μὴ ξενζεσθε τῇ
ἐν ὑμῖν πυρώσει (1 Pet. 4:12), ῖνα μὴ τῷ σταυρῷ τοῦ Χριστοῦ διώκωνται.
(Gal. 6:12).
(f) Means or instrument can thus be naturally expressed by
this case. Donaldson (New Crαtylus, p. 439) calls it the imple-
mentive case. The verb χράομαι obviously, like utor in Latin, has
the instrumental case as πολλῇ παρρησίᾳ χρώμεθα (2 Cor. 3:12).
Other illustrations are συναπήχθη τῇ ὑποκρίσει (Gal. 2:13), ἤλιφεντῷ
μαργ (Luke 7:38), ἀνελεν δὲ Τάκωβον . ... ν2χαρῃ (Acts 12:2), δε-
δάμασται τῇ φύσει (ames 3:7), ἀλύσεσι δεδέσθαι (Mark 5:4), οὐ
φθαρτοῖς, ἀργυρίῳ ἢ χρυσίῳ, ἐλυτρώθητε, . . .. ἀλλὰ τιμίῳ αἴματι (I Pet.
1:18f.), πεπληρωμένους πάσῃ ἀδικίᾳ (Rom. 1: 2θ), χάριτί ἐστε σεσωσ-
μένοι (Eph. 2:8), τις ἦττηται (2 Peter 2:19); and probably also
τῇ γὰρ ἐλπίδι ἐσώθημεν (Rom. 8:24) and κατακαύσει πυρὶ ἀσβέστῳ
(Matt. 3:12) though these could also be locative. The agent with
passive verbs may also be expressed in the instrumental case as
οὐδὲν ξιον θανάτου ἐστὶν πεπραγμένοναὐτῷ (Luke23:15), and probably
κἀγω εὑρεθῶ ὑμῑν (2 Cor. 12:20), though this may possibly be a true
dative (Brugmann, Griechische Grammatik, S. 400).
(g) The instrumental case is used to express measure in com-
parative phrases. In English the is in the instrumental case in
phrases like the more, the less, as is shown by the Anglo-Saxon
thῇ (ιhὲ). The accusative gradually displaces the instrumental in
Greek for this idea, yet it appears several times in Hebrews as in
10:25, τοσούτῳ μᾶλλον ὅσῳ βλέπετε. See also πολλῷ μᾶλλον (Mark
''ʼ]ζζ'. ,1, wo oreoosi0οos ωse 1ρe 10αrυωνυοtο11o oree8, να
##############
The page image is:
Text is the following between '############'s
The ground rules:
1. Never change the lines, either by inserting a line break or removing one. We are not training this aspect, and if wonky decisions are made by the software that does that aspect, it will not impact further OCR recognition. However, if you do play with this aspect, it will offset the training data and make a mess.
2. Correct EVERYTHING, and correct everything correctly. If you leave something incorrect, you are making things worse, basically reinforcing bad habits. Distinguish between superscript numbers and normal ones, for instance. Correct sigla.
3. Use composed unicode output (this is the most common default).
4. If a line should not be used in training, like line 4 below, replace its characters with 'xxxxx' Note that you should use this when the corresponding image does not contain real text. In that case, it was the underline that got recognized as letters. The same is true for the last line of the OCR output, which is noise on the page. We neither want to correct the output in this case or suggest that the output is 'blank', we just want to say this is not part of how we'll train you, Mister Computer.
5. In rare cases, due to a printer's error or ink-blot, the printed character does actually look like what it was recognized as, even though this is not what was originally on the printer's plates. In these cases, we should go with the (erroneous) recognized character, because it was a legit reading. (Even if you or I could tell that it is in fact alpha-smudge, not delta.)
6. Many of the remaining errors are combining vowels and accents, so be sure to check these carefully. Sometimes it helps to set the font size unusually large.
#############
1 10 A sHoRT GRAMMAR oF TIE GREEE NEW TEsTAMENT.
tive absolute, this construction is common in Homer. A number
of adverbs in the instrumental case illustrate this usage as πανοικεί
wweενw
(3 16:34), τάχα (Rom. 5:7), πανπληθεί (Luke 23:18), πάντῃ
ι(Aeiἴ7δ, κρυφῇ (Eph. 5:12), ιδᾳ (1 Cor. 12:11), δηροσ (λcts
16:37), ἅμα (Acts 24:26), and the preposition μετά and the con-
junction ἴνα.
(e) The instrumental case is also used to express the idea of
cause or ground. This conception likewise wavers between asso-
ciation and means. Thus we have τοιαύταις γὰρ θυσίαις εὐαρεστεῖται
(Heb. 13:16), τῇ ἀπιστᾳ ἐξεκλάσθησαν (Rom. 11:20), μὴ ξενζεσθε τῇ
ἐν ὑμῖν πυρώσει (1 Pet. 4:12), ῖνα μὴ τῷ σταυρῷ τοῦ Χριστοῦ διώκωνται.
(Gal. 6:12).
(f) Means or instrument can thus be naturally expressed by
this case. Donaldson (New Crαtylus, p. 439) calls it the imple-
mentive case. The verb χράομαι obviously, like utor in Latin, has
the instrumental case as πολλῇ παρρησίᾳ χρώμεθα (2 Cor. 3:12).
Other illustrations are συναπήχθη τῇ ὑποκρίσει (Gal. 2:13), ἤλιφεντῷ
μαργ (Luke 7:38), ἀνελεν δὲ Τάκωβον . ... ν2χαρῃ (Acts 12:2), δε-
δάμασται τῇ φύσει (ames 3:7), ἀλύσεσι δεδέσθαι (Mark 5:4), οὐ
φθαρτοῖς, ἀργυρίῳ ἢ χρυσίῳ, ἐλυτρώθητε, . . .. ἀλλὰ τιμίῳ αἴματι (I Pet.
1:18f.), πεπληρωμένους πάσῃ ἀδικίᾳ (Rom. 1: 2θ), χάριτί ἐστε σεσωσ-
μένοι (Eph. 2:8), τις ἦττηται (2 Peter 2:19); and probably also
τῇ γὰρ ἐλπίδι ἐσώθημεν (Rom. 8:24) and κατακαύσει πυρὶ ἀσβέστῳ
(Matt. 3:12) though these could also be locative. The agent with
passive verbs may also be expressed in the instrumental case as
οὐδὲν ξιον θανάτου ἐστὶν πεπραγμένοναὐτῷ (Luke23:15), and probably
κἀγω εὑρεθῶ ὑμῑν (2 Cor. 12:20), though this may possibly be a true
dative (Brugmann, Griechische Grammatik, S. 400).
(g) The instrumental case is used to express measure in com-
parative phrases. In English the is in the instrumental case in
phrases like the more, the less, as is shown by the Anglo-Saxon
thῇ (ιhὲ). The accusative gradually displaces the instrumental in
Greek for this idea, yet it appears several times in Hebrews as in
10:25, τοσούτῳ μᾶλλον ὅσῳ βλέπετε. See also πολλῷ μᾶλλον (Mark
''ʼ]ζζ'. ,1, wo oreoosi0οos ωse 1ρe 10αrυωνυοtο11o oree8, να
##############